Ball jointed mixing spray device and multi-channel mixing spray method

Abstract

The application provides a ball hinge type mixed spray device and a multi-channel mixed spray method, and relates to the technical field of spray equipment.The device comprises a valve body, a nozzle, a nozzle cover, an extension pipe assembly, a valve seat assembly, a piston rod assembly and a piston cover, and is characterized in that a threaded hole is arranged on the piston cover and matched with an adjusting nut; a T-shaped piston rod is arranged in the valve seat assembly, the bottom of the piston rod is an annular taper surface, and the liquid inlet of the valve body is in sealing cooperation with the annular taper surface of the piston rod; the liquid outlet of the valve body is provided with a threaded hole, an external thread gas pipe joint is arranged in the threaded hole, the head of the nozzle is provided with an external thread, the extension pipe is tightly connected with the threaded hole of the extension pipe, and the extension pipe is internally provided with a sealing ring and a gas pipe.The liquid is output into the valve body, the air inlet is opened at the same time, and the liquid and the gas are mixed and atomized through the extension pipe assembly and then sprayed out.The size of the liquid flow can be arbitrarily adjusted through the adjusting nut, the extension pipe, the gas pipe and the like can be customized or replaced, the device is convenient to disassemble and maintain in the later period, the device is simple and easy to operate, and the like.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medium atomization, in particular to a ball hinge type mixed spray device and a multi-channel mixed spray method. BACKGROUND

[0002] Medium spray valve is a device that uses high-speed jet steam or air as a gas medium to impact fluid and blow it to achieve atomization. It is widely used in many fields of production and life, especially in industrial and agricultural production processes. The internal gas path, water path and atomized jet spray posture of the medium spray valve will directly affect the working performance of the medium spray valve.

[0003] At present, there are many types of existing medium spray valves. According to the installation method of the nozzle, they can be divided into pipe medium atomization valves and pipeless medium atomization valves. The spray valve with the nozzle directly installed on the valve body is called a pipeless medium spray valve. The spray valve with the nozzle installed on the valve body through an extension pipe assembly is called a pipe medium spray valve, which can be divided into two types according to whether the extension pipe assembly can be bent. However, the above-mentioned medium spray valves all have obvious shortcomings.

[0004] (1) The main shortcomings of the pipeless medium spray valve are that the internal gas path and water path design is unreasonable, resulting in poor spray effect; since the nozzle is installed on the valve body, it is not easy to work in a narrow space under the condition of ensuring a certain atomization angle; the atomized jet spray posture cannot be adjusted or is inconvenient to adjust, resulting in limited effective working range, etc.

[0005] (2) The main shortcomings of the bendable pipe medium spray valve are that a large force is required to bend the extension pipe assembly; the pipe hardens after being bent, making it impossible to reset the extension pipe assembly; the medium pressure drop between the valve body inlet and the nozzle increases after the pipe is bent, etc.

[0006] (3) The non-bendable pipe medium spray valve only solves the problem of working in a narrow space of the pipeless medium spray valve, but the atomized jet spray posture still cannot be adjusted or is inconvenient to adjust. SUMMARY

[0007] The present application relates to the technical field of medium atomization, in particular to a ball hinge type mixed spray device and a multi-channel mixed spray method.

[0008] In the first aspect, a ball hinge type mixed spray device is provided, which includes a valve body, a piston cover, a nozzle cover, an adjusting device, an extension pipe assembly, and a piston assembly.

[0009] The valve body comprises a left end cavity and a right end cavity; the left end cavity is a stepped cavity, which is composed of a first piston cavity and a second piston cavity. The right end cavity is a circular cavity. The left end cavity is provided with a communication inlet hole and a liquid outlet, and the right end cavity is provided with a through hole penetrating the inlet hole. A piston cover is arranged on the left end cavity. A nozzle cover is arranged on the right end cavity; the nozzle cover is provided with a spherical through slot. An adjusting device is arranged between the piston cover and the piston assembly; the adjusting device comprises an adjusting nut and a return spring. An extension pipe assembly is arranged in the left end cavity and penetrates the spherical through slot. The piston assembly is arranged in the left end cavity.

[0010] In some implementations of the first aspect, the extension pipe assembly comprises a tracheal connector, a rotary nozzle, an extension rod, an extension pipe body, a nozzle seat and a nozzle.

[0011] The tracheal connector is screwed to the right end cavity of the valve body to form a circuit for the liquid outlet. The rotary nozzle is a hemisphere with a predetermined radian; the rotary nozzle is movably connected to the right end cavity of the valve body, and the right end cavity of the valve body is provided with a spherical recess which cooperates with the rotary nozzle. The extension rod is connected to the rotary nozzle; a sealing gasket is arranged between the extension rod and the rotary nozzle. The extension pipe body is arranged in the extension rod. The nozzle seat is arranged on the extension rod; a sealing gasket is embedded between the nozzle seat and the extension rod. The nozzle is arranged on the nozzle seat; a sealing gasket is sleeved between the nozzle and the nozzle seat. The two ends of the extension pipe body abut against the tracheal connector and the nozzle respectively.

[0012] In some implementations of the first aspect, the piston assembly comprises a valve seat and a piston rod. The valve seat is arranged in the left end cavity of the valve body; the valve seat is provided with a piston hole and a plurality of sealing coils. The piston rod is arranged in the piston hole; a sealing coil is arranged between the upper end of the piston rod and the inner wall of the circular cavity of the valve body.

[0013] In some implementations of the first aspect, the first piston cavity of the valve body is provided with a first through hole, the second piston cavity is provided with a second through hole and a conical bottom hole. The bottom of the circular cavity of the valve body is provided with a third through hole and a fourth through hole. The side surface of the valve body is provided with a duct. The bottom of the valve body is provided with a first bottom end boss; the top of the valve body is provided with a first top end boss. The first through hole is used for flowing gas into the first piston cavity to lift the piston rod; the second through hole is used for flowing liquid into the second piston cavity, and then flowing into the duct through the conical bottom hole; the third through hole connects the duct and the channel of the circular cavity, so that the liquid flows into the tracheal connector; the fourth through hole is used for flowing gas directly into the circular cavity.

[0014] In some implementations of the first aspect, the piston cover further comprises a second top end boss, a second bottom end boss and a side end small hole. The second top end boss is provided with a threaded through hole for installing an adjusting screw; the second bottom end boss is embedded in the left end cavity of the valve body; the side end small hole is used for exhaust gas reset.

[0015] In some implementations of the first aspect, the valve seat further comprises a threaded step, a stepped groove, a stepped through-hole. The threaded step is used to fit the left-side cavity of the valve body. The stepped groove is used to achieve partial sealing of the bottom step of the left-end cavity of the valve body. The stepped through-hole is in communication with the piston hole of the valve seat, constituting a circuit.

[0016] In some implementations of the first aspect, the piston rod further comprises a top-end groove, a stepped groove, a bottom-end conical surface. The top-end groove is used to adjust the installation and fixation of the spring. The stepped groove is used to seal the installation of the coil. The bottom-end conical surface cooperates with the conical bottom hole of the bottom of the left-end cavity, used to limit the flow size.

[0017] In some implementations of the first aspect, the nozzle cover further comprises a large circular hole and a small circular hole. The large circular hole is used to position the nozzle cover; the large circular hole cooperates with the first top-end boss on the valve body and a sealing coil is arranged therebetween. The small circular hole is used to fix the installation position of the nozzle cover.

[0018] In some implementations of the first aspect, the extension rod further comprises a large-diameter thread, a small-diameter thread, and a through-hole. The large-diameter thread is used to achieve threaded connection with the rotating spray head, and the large-diameter thread is internally provided with a groove for installing a sealing coil. The small-diameter thread is used to achieve threaded connection with the spray head seat. The through-hole is used to pass through the extension pipe, forming a circuit.

[0019] In some implementations of the first aspect, the spray head seat further comprises an outer groove and an inner groove. The outer groove is used to place a sealing coil between the spray head and the spray head seat; the inner groove is used to embed a sealing coil between the spray head seat and the extension pipe.

[0020] In some implementations of the first aspect, the spray head further comprises a first circular hole, a second circular hole, a third circular hole, and a fourth threaded hole. The first circular hole is used for fluid mixing; the second circular hole is used for fluid output; the third circular hole is used to pass through the extension pipe, forming a circuit; and the fourth threaded hole is used to install the spray head on the spray head seat.

[0021] In a second aspect, a multi-channel mixed spray method is provided, which uses the ball-joint type mixed spray device disclosed in the first aspect to achieve subsequent processes. The spray method comprises the following steps:

[0022] S1, introducing fluid through the first through-hole by the action device, so that the piston rod rises, the return spring deforms and is pressed to a preset position, the tail conical surface of the piston rod is separated from the conical surface of the valve body, and the circuit is opened;

[0023] S2, in the state of the piston rod jacking the opening circuit, the second through hole is guided into fluid by the action device, and the fluid quickly passes through the right cavity of the valve body and enters the left cavity, since the channel is small, the action power becomes large, and the fluid enters the spray head through the extension pipe by the force;

[0024] S3, the third through hole is opened to guide fluid into the spray head through the extension rod, when the fluid is located at the first circular hole of the spray head, due to the pressure, the fluid is cross-fused to form atomization and is sprayed out;

[0025] S4, after the action is completed, the action device is closed, the piston rod is not subjected to the action force, since the reset spring is deformed and returns to the original state, the piston rod returns to the original position, and the tail cone surface of the piston rod is attached to the cone surface of the valve body, so that the circuit is closed.

[0026] Beneficial effects: the application provides a ball hinge type mixed spray device and a multi-channel mixed spray method, which optimizes the internal air path and water path, and innovatively designs a ball hinge type spray mechanism. The ball nozzle is connected with the extension rod, the spray direction can be adjusted at multiple angles, the spray jet posture is adjusted, the atomization effect is always in the best working state, the application scene limitation and unstable spray effect of similar products are solved, and the problem of uneven atomization effect is solved. In addition, the internal structure of the spray device is high in sealing performance, the valve body is high in switching flexibility, and sufficient pressure during atomization is guaranteed. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is an overall structure explosion diagram of the application.

[0028] Figure 2 It is an extension pipe assembly explosion diagram of the application.

[0029] Figure 3 It is a piston rod assembly explosion diagram of the application.

[0030] Figure 4 It is a valve body structure schematic diagram of the application.

[0031] Figure 5 It is a front view of the spray device.

[0032] Figure 6 It is a cross-sectional view of the spray device in the open state.

[0033] Figure 7 It is a cross-sectional view of the spray device in the closed state.

[0034] Figure 8 It is an internal hidden line drawing of the valve body.

[0035] The reference signs in the drawings are as follows: valve body 1, first circular cavity 1a, first piston cavity 1b, conical bottom hole 1c, second piston cavity 1d, threaded hole 1e, channel 1f, valve body mounting hole 1g, first through hole 1h, second through hole 1i, third through hole 1j, fourth through hole 1k, extension pipe assembly 2, air pipe joint 2a, rotary nozzle 2b, first coil 2c, extension rod 2d, second coil 2e, nozzle seat 2f, third coil 2g, nozzle 2h, extension pipe 2i, piston assembly 3, fourth coil 3a, fifth coil 3b, valve seat 3c, sixth coil 3d, piston rod 3e, seventh coil 3f, nozzle cover 4, piston cover 5, eighth coil 6, fastening screw 7, adjusting screw 8, flat head screw 9, ninth coil 10, tenth coil 11, eleventh coil 12. DETAILED DESCRIPTION

[0036] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one skilled in the art that the present application can be practiced without one or more of these specific details. In other instances, well-known features have not been described in detail in order to avoid unnecessarily complicating the present application.

[0037] Embodiment One

[0038] The present embodiment proposes a ball hinge type mixed spray device, as shown in Figures 1 to 3 The device comprises six components: valve body 1, piston cover 5, nozzle cover 4, adjusting device, extension pipe assembly 2, and piston assembly 3.

[0039] The valve body 1 comprises a left end cavity and a right end cavity. The left end cavity is a stepped cavity, which is composed of the first piston cavity 1b and the second piston cavity 1d. The right end cavity is a circular cavity. The left end cavity is provided with a communication inlet hole and a liquid outlet hole, and the right end cavity is provided with a through inlet hole. The first piston cavity 1b of the valve body 1 is provided with a first through hole 1h, and the second piston cavity 1d is provided with a second through hole 1i and a conical bottom hole 1c. The bottom of the circular cavity of the valve body 1 is provided with a third through hole 1j and a fourth through hole 1k. The side of the valve body 1 is provided with a channel 1f. The bottom of the valve body 1 is provided with a first bottom end boss, and the top of the valve body 1 is provided with a first top end boss.

[0040] The piston cover 5 is arranged on the left end cavity. The piston cover 5 further comprises a second top end boss, a second bottom end boss, and a side end small hole. The second top end boss is provided with a threaded through hole for installing the adjusting screw 8, the second bottom end boss is embedded in the left end cavity of the valve body 1, and the side end small hole is used for resetting exhaust.

[0041] Piston assembly 3 is arranged in the left end cavity. Piston assembly 3 includes valve seat 3c and piston rod 3e. Piston rod 3e also includes top end groove, stepped groove and bottom end taper. Top end groove is used to adjust the installation of spring. Stepped groove is used to seal the installation of coil. Bottom end taper cooperates with tapered bottom hole 1c at the bottom of left end cavity, which is used to limit the flow size.

[0042] Valve seat 3c is arranged in the left end cavity of valve body 1. Piston hole and multiple sealing coils are arranged in valve seat 3c. Piston rod 3e is arranged in piston hole. Sealing coil is arranged between the upper end of piston rod 3e and the inner wall of the circular cavity of valve body 1. Valve seat 3c also includes threaded step, stepped groove and stepped through hole. Threaded step is used to adapt to the left end cavity of valve body 1. Stepped groove is used to realize the local sealing of the bottom step of the left end cavity of valve body 1. Stepped through hole is communicated with piston hole of valve seat 3c, which constitutes a circuit.

[0043] Nozzle cover 4 is arranged on the right end cavity. Nozzle cover 4 is provided with a spherical through slot. Nozzle cover 4 also includes a large circular hole and a small circular hole. The large circular hole is used to position the nozzle cover 4. The large circular hole cooperates with the first top end boss on the valve body 1, and a sealing coil is arranged therebetween. The small circular hole is used to fix the installation position of the nozzle cover 4.

[0044] Adjusting device is arranged between piston cover 5 and piston assembly 3. Adjusting device includes adjusting nut and return spring.

[0045] Extension pipe assembly 2 is arranged in the left end cavity and penetrates through the spherical through slot. Extension pipe assembly 2 includes air pipe joint 2a, rotating nozzle 2b, extension rod 2d, extension pipe 2i body, nozzle seat 2f and nozzle 2h. Air pipe joint 2a is screwed on the right end cavity of valve body 1, which is used to form a circuit for liquid outlet. Rotating nozzle 2b is a semispherical with a predetermined radian. Rotating nozzle 2b is movably connected in the right end cavity of valve body 1. A spherical groove is arranged in the right end cavity of valve body 1, which cooperates with rotating nozzle 2b. Extension rod 2d is connected with rotating nozzle 2b. Sealing washer is arranged between extension rod 2d and rotating nozzle 2b.

[0046] Extension rod 2d also includes large diameter thread, small diameter thread and through hole. Large diameter thread is used to threadedly connect with rotating nozzle 2h, and a groove for installing sealing coil is arranged in the large diameter thread. Small diameter thread is used to threadedly connect with nozzle seat 2f. Through hole is used to pass through extension pipe 2i to form a circuit.

[0047] The extension pipe 2i is arranged in the extension rod 2d. The nozzle seat 2f is arranged on the extension rod 2d, and a sealing washer is arranged between the nozzle seat 2f and the extension rod 2d. The nozzle seat 2f further comprises an outer groove and an inner groove. The outer groove is used for sleeving a sealing coil between the nozzle 2h and the nozzle seat 2f, and the inner groove is used for embedding a sealing coil between the nozzle seat 2f and the extension pipe 2i. The nozzle 2h is arranged on the nozzle seat 2f, and a sealing washer is sleeved between the nozzle 2h and the nozzle seat 2f. The nozzle 2h further comprises a first circular hole, a second circular hole, a third circular hole, and a fourth threaded hole 1e. The first circular hole is used for mixing fluid, the second circular hole is used for outputting fluid, the third circular hole is used for penetrating the extension pipe 2i to form a loop, and the fourth threaded hole 1e is used for mounting the nozzle 2h on the nozzle seat 2f. The two ends of the extension pipe 2i body are respectively in abutment with the air pipe joint 2a and the nozzle 2h.

[0048] Embodiment two:

[0049] In order to better show the ball hinge type mixing spray device provided by the present application, embodiment two combines the drawings of the ball hinge type mixing spray device provided by the present application with the Figures 1 to 8 Detailed description.

[0050] As Figure 1 shown, it comprises a valve body 1, an extension pipe assembly 2, a piston assembly 3, a nozzle cover 4, a piston cover 5, an eighth coil 6, a fastening screw 7, an adjusting screw 8, a flat head screw 9, a ninth coil 10, a tenth coil 11, and an eleventh coil 12.

[0051] The valve body 1 is provided with a circular first piston cavity 1b and a second piston cavity 1d at the left end, a first through hole 1h is arranged in the first piston cavity 1b, a tapered bottom hole 1c and a second through hole 1i are arranged inside the second piston cavity 1d, a first circular cavity 1a is arranged at the right end, a third through hole 1j and a fourth through hole 1k are arranged in the first circular cavity 1a, three threaded holes 1e are arranged on the upper end surface of the valve body 1, a duct 1f is arranged on the side surface of the valve body 1, and a valve body mounting hole 1g is arranged on the lower end surface of the valve body 1.

[0052] In the preferred embodiment, the first piston cavity 1b and the second piston cavity 1d are arranged in the valve body 1, and are used for mounting the piston assembly 3. The surface roughness Ra of the first piston cavity 1b is ≤0.8, which facilitates the up-and-down sliding of the piston rod 3e thereon. The upper end circular inner wall of the second piston cavity 1d is provided with threads, which are used for screwing the valve seat 3c. The bottom is provided with a tapered bottom hole 1c, which is used for forming a cooperation with the lower end circular tapered surface of the piston rod 3e. The bottom of the first circular cavity 1a is provided with a third through hole 1j and a fourth through hole 1k penetrating therethrough. The third through hole 1j is provided with threads, which are used for connecting the air pipe joint 2a. Three threaded holes 1e are arranged thereon, which are used for screwing the nozzle cover 4 and the piston cover 5.

[0053] The valve body 1 is provided with a boss on the upper and lower sides, the first bottom end boss is located at the bottom of the valve body 1, and the first top end boss is located at the top of the valve body 1. The first top end boss is used for positioning the nozzle cover 4, the nozzle cover 4 is provided with a large circular hole, the large circular hole is matched with the first top end boss on the valve body 1, and the two are provided with the eleventh coil 12 therebetween.

[0054] In the preferred embodiment, the valve seat 3c is made of alloy material, has strong corrosion resistance and water resistance, can withstand harsh environmental conditions, has long service life, is easy to process and economical and practical, and the like.

[0055] In the preferred embodiment, as shown in the drawings, the extension pipe assembly 2 includes a tracheal joint 2a, a rotary nozzle 2b, an extension rod 2d, an extension pipe 2i, a nozzle seat 2f, a nozzle 2h, and a plurality of coils. Figure 2

[0056] The extension pipe 2i is inserted into the tracheal joint 2a at one end, and the whole is arranged in the extension rod 2d, the rotary nozzle 2b and the nozzle seat 2f to form two accommodating cavities.

[0057] The lower end of the rotary nozzle 2b is spherical in appearance, is provided with a through circular hole inside, the upper end nozzle is provided with external threads, is connected with the lower end of the extension rod 2d, and is provided with the first coil 2c inside.

[0058] The lower end of the extension rod 2d is a large-diameter circular internal thread, is provided with a through circular inner cavity inside, is provided with external threads at the upper end and is connected with the lower end internal thread of the nozzle seat 2f, and the second coil 2e is arranged between the two.

[0059] The lower end of the nozzle seat 2f is provided with an internal threaded hole 1e, is provided with a through circular inner cavity inside, is provided with external threads and a groove at the upper end and is connected with the lower end of the nozzle 2h, and the third coil 2g is sleeved in the groove.

[0060] The nozzle 2h is provided with a plurality of through small holes inside, and the upper end circular cavity is used for fluid mixing.

[0061] In the present application, the lower end of the rotary nozzle 2b adopts a spherical surface structure, is beautiful in appearance, can realize multi-angle rotary motion, is applied to various working occasions, and is convenient to operate.

[0062] In the preferred embodiment, as shown in the drawings, the piston assembly 3 includes a valve seat 3c, a piston rod 3e, a fourth coil 3a, a fifth coil 3b, a sixth coil 3d and a seventh coil 3f. Figure 3 The valve seat 3c is provided with a through piston hole inside, a lower end groove and an upper end groove, and is respectively embedded with the fourth coil 3a and the sixth coil 3d, is provided with a large groove in the middle and is sleeved with the fifth coil 3b, and is provided with external threads at the top end.

[0063]

[0064] ​​The middle end of the piston rod 3e is provided with a groove and sleeved into the seventh coil 3f, the top end is provided with a circular notch and a boss for limiting the spring, and the lower end is provided with a tapered surface and inserted into the through hole in the valve seat 3c to be closely matched with the fourth coil 3a and the sixth coil 3d.

[0065] In the preferred embodiment, the valve seat 3c can also be made of copper, which has high strength, resistance and ductility, stable structure and long service life.

[0066] Based on the above-mentioned embodiments one to two, the embodiment three discloses a unique multi-channel mixed spray method, and it should be noted that the spray method can be driven by the ball hinge type mixed spray device mentioned in the embodiment one or the embodiment two. Alternatively, other structures of spray devices can also be used to drive the spray method without departing from the relevant innovative spirit of the method.

[0067] The driving process of the spray method is disclosed in detail as follows: the first fluid flows into the first piston cavity 1b through the first through hole 1h by external force, the piston rod 3e is lifted up to compress the reset spring to the position of the adjusting screw 8 due to the pressure, and the fluid in the first piston cavity 1b flows out from the small hole at the side end of the piston cover 5, the second fluid flows into the second piston cavity 1d through the second through hole 1i, flows into the third through hole 1j through the duct 1f, and the third fluid flows into the first circular cavity 1a through the fourth through hole 1k at the same time, the second fluid and the third fluid move at the same time, the second fluid flows into the air pipe joint 2a through the third through hole 1j, flows into the atomizing cavity at the upper end of the spray head 2h through the extension pipe 2i, the third fluid flows into the first circular cavity 1a, flows into the spray head 2h through the rotating spray port 2b, the extension rod 2d and the spray head seat 2f, and enters the atomizing cavity at the upper end of the spray head 2h, and when the two fluids flow into the atomizing cavity at the same time, atomization and continuous spraying are generated to form a loop; after the action is completed, the three fluids are removed, the reset spring is reset, the piston rod 3e is reset and attached to the valve seat 3c due to the spring force, the bottom tapered surface of the piston rod 3e is closely matched with the tapered bottom hole 1c in the second piston cavity 1d of the valve body 1, so as to close the second fluid flowing into the duct 1f to form a closed loop.

[0068] Based on the above-mentioned embodiments, the present application has obvious advantages compared with the existing medium spray technology:

[0069] I. Atomization posture: the appearance design of the present application is round and has good texture, the extension pipe assembly 2 is arranged on the adjustable rotating spray port 2b, the atomization jet posture is convenient to adjust, and the atomization effect is always in the best working state.

[0070] II. Atomization effect: the internal gas-liquid pipeline of the present application is reasonably designed, the atomization state is stable, the atomization is uniform, the gas amount is sufficient, the spray effect is best, the valve body 1 is made of alloy material, is durable, and at the same time, the product weight is reduced.

[0071] Three, performance optimization: key components of brass and other high-strength alloys, corrosion resistance, wear resistance, good mechanical properties, while using high-strength springs, fast speed, good recovery performance, pure mechanical action limit.

[0072] As mentioned above, although the application has been indicated and described with reference to specific preferred embodiments, it is not to be construed as a limitation of the application itself. Various changes in form and details can be made therein without departing from the spirit and scope of the application as defined in the appended claims.

Claims

1. A ball-joint type mixing spray device, characterized in that, include: The valve body includes a left-end cavity and a right-end cavity; The left-end cavity is a stepped cavity, which is composed of a first piston cavity and a second piston cavity; the right-end cavity is a circular cavity. The left cavity is provided with a connecting air inlet and an infusion port, and the right cavity is provided with a through air inlet. A piston cap is disposed on the left end cavity; A nozzle cover is disposed on the right-end cavity; the nozzle cover is provided with a spherical through-hole. An adjusting device is disposed between the piston cover and the piston assembly; the adjusting device includes an adjusting nut and a return spring; An extension tube assembly is disposed within the cavity at the right end and passes through the spherical through-hole. The piston assembly is disposed within the left-end cavity; The extension tube assembly includes: A gas pipe connector is screwed into the right end cavity of the valve body to form a circuit at the liquid outlet. The rotating nozzle is a hemispherical shape with a predetermined arc. The rotating nozzle is movably connected to the cavity at the right end of the valve body. A spherical groove is provided in the cavity at the right end of the valve body, and the spherical groove cooperates with the rotating nozzle. An extension rod is connected to the rotating nozzle; a sealing gasket is placed between the extension rod and the rotating nozzle. The extension tube body is disposed inside the extension rod; A nozzle holder is mounted on the extension rod; a sealing gasket is embedded between the nozzle holder and the extension rod. A nozzle is mounted on the nozzle holder; a sealing gasket is fitted between the nozzle and the nozzle holder. The two ends of the extension tube body abut against the air pipe connector and the nozzle, respectively.

2. The ball-joint type mixing spray device according to claim 1, characterized in that, The piston assembly includes: A valve seat is disposed in the cavity at the left end of the valve body; the valve seat is provided with a piston hole and multiple sealing coils; A piston rod is disposed within the piston hole; a sealing coil is provided between the upper end of the piston rod and the inner wall of the circular cavity of the valve body.

3. The ball-joint type mixing spray device according to claim 2, characterized in that, The first piston cavity of the valve body is provided with a first through hole, and the second piston cavity is provided with a second through hole and a tapered bottom hole; The bottom of the circular cavity of the valve body is provided with a third through hole and a fourth through hole; The valve body has a passage on its side; The valve body has a first bottom boss at the bottom and a first top boss at the top. The nozzle cover is provided with a circular hole that is adapted to the first top boss, and a sealing coil is provided between the circular hole and the first top boss; The first through hole is used to allow gas to flow into the first piston cavity channel to lift the piston rod; The second through hole is used to allow liquid to flow into the second piston cavity, and then enter the channel through the tapered bottom hole; The third through hole connects the passageway and the circular cavity, allowing liquid to flow into the tracheal connector; The fourth through hole is used to allow gas to flow directly into the circular cavity.

4. The ball-joint type mixing spray device according to claim 1, characterized in that, The piston cover also includes: The second top boss has a built-in threaded through hole for installing an adjusting screw; The second bottom boss is embedded in the left end cavity of the valve body; A small hole on the side is used for resetting and venting.

5. The ball-joint type mixing spray device according to claim 3, characterized in that, The valve seat also includes: A threaded step is provided for fitting into the left-end cavity of the valve body. The stepped groove is used to achieve a partial seal at the bottom step of the cavity at the left end of the valve body; The stepped through hole communicates with the piston hole of the valve seat, forming a circuit.

6. The ball-joint type mixing spray device according to claim 3, characterized in that, The piston rod also includes: The top groove is used to adjust the installation and fixation of the spring; Stepped grooves are used for sealing the installation of the sealing coil; The bottom conical surface mates with the conical bottom hole at the bottom of the left-end cavity to limit the flow rate.

7. The ball-joint type mixing spray device according to claim 1, characterized in that, The extension rod also includes: The through hole is used to insert the extension tube to form a circuit.

8. The ball-joint type mixing spray device according to claim 1, characterized in that, The nozzle also includes: The first circular hole is used for fluid mixing; The second circular hole is used for fluid output; The third circular hole is used to insert the extension tube to form a circuit; The fourth threaded hole is used to mount the nozzle onto the nozzle holder.

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